Mover unit of linear motor

Abstract

The utility model discloses a mover unit of linear motor, include: substrate, a plurality of coil winding and install on the mover iron core of substrate, the opposite side of substrate is formed with a plurality of mover tooth parts corresponding setting of coil winding on mover iron core, every coil winding with corresponding mover tooth part all are provided with a protective sheath, and the 4 lateral wall of protective sheath and be located its near substrate one end all form a flanging part vertical away from protective sheath lateral wall, and the end face of coil winding near substrate one end and corresponding protective sheath flanging part lap joint contact, and every coil winding one end all are provided with 2 root outward extending lead-out wire, and the lead-out wire between a plurality of coil winding, the lead-out wire between coil winding and one end of a out wire cable all are through the wire connection, the utility model discloses a mover unit of linear motor can protect coil, avoid its and the mutual interference between mover iron core, damage, also simplify the processing technology, can also reduce the appearance size of product.

Description

Technical Field

[0001] This utility model relates to the field of motor manufacturing technology, and in particular to a moving part of a linear motor. Background Technology

[0002] In recent years, with the transformation of national development policies across various industries, from energy conservation and emission reduction to building a manufacturing powerhouse, the field of automated manufacturing has seen ample development. In the manufacturing industry, linear motors, as a product with gradually stabilizing development and increasing demand, have begun to be applied in industries such as 3C, semiconductors, lithium batteries, and laser processing machine tools, and have a favorable market environment and development prospects.

[0003] As a core component of the linear motor module, the linear motor mover connects to the encoder and power lines via its front-end wiring, enabling the mover itself to achieve controllable linear motion and thus controlling the motion trajectory of the entire linear motor module. To ensure the linear motor module can still be used for motion control in various installation environments, it needs to be able to be installed normally even in space-constrained conditions. This necessitates the use of smaller linear motor movers for assembly within the linear motor module. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a mover unit for a linear motor. This mover unit can protect the coil and avoid mutual interference and damage between it and the mover core, simplify the processing technology, and reduce the size of the product.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a moving part unit of a linear motor, comprising: a base plate, a plurality of coil windings and a moving part core mounted on the base plate. The moving part core has a plurality of moving part teeth corresponding to the coil windings formed on the side opposite to the base plate. Each moving part tooth is spaced apart from the adjacent moving part teeth, and a coil winding is correspondingly sleeved on the outer side of each moving part tooth. A protective sleeve is provided between each coil winding and the corresponding moving part tooth. A flange portion perpendicular to the side wall of the protective sleeve is formed on the four side walls of the protective sleeve and at the end closest to the base plate. The end face of the coil winding near the base plate overlaps and contacts the flange portion of the corresponding protective sleeve. Two outwardly extending lead wires are provided at one end of each coil winding. The lead wires of the plurality of coil windings are connected to each other and to one end of an output cable through wires. The other end of the output cable is used for electrical connection with an external cable.

[0006] The following are further improvements to the above technical solution:

[0007] 1. In the above scheme, one of the flanged portions extends to the outside of the moving core and has two through holes through which the lead wires can pass.

[0008] 2. In the above scheme, a winding support plate is formed on the surface of the flange portion with the wire hole facing away from the coil winding and located on the side of the wire hole near the moving core. The winding support plate is provided with a number of winding slots.

[0009] 3. In the above scheme, a conduit is provided on the outer side of the connection between the lead wires and the outer side of the connection between the lead wire and the outgoing cable.

[0010] 4. In the above scheme, the coil winding is obtained by processing copper wire, and the lead wire is copper wire.

[0011] 5. In the above scheme, the moving core is composed of several stacked silicon steel sheets.

[0012] 6. In the above scheme, each of the silicon steel sheets has an outwardly extending connecting part at both ends, and a through hole is formed on the connecting part, so that mounting holes formed by the through holes are formed at both ends of the stacked moving core, and a screw passes through the mounting hole and is fixed by a nut.

[0013] 7. In the above scheme, a plurality of extensions are provided between the two connecting parts of each silicon steel sheet, which are spaced apart along the length direction of the silicon steel sheet, thereby forming a moving tooth part connected by the extensions on the moving iron core formed by stacking.

[0014] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0015] The linear motor mover unit of this utility model has a protective sleeve between each coil winding and the corresponding mover tooth. Each of the four side walls of the protective sleeve, and at the end closest to the substrate, has a flanged portion perpendicular to the side wall of the protective sleeve. The end face of the coil winding near the substrate overlaps with the flanged portion of the corresponding protective sleeve. Each coil winding has two outwardly extending leads at one end. The leads of several coil windings are connected to each other, and the leads of a coil winding are connected to one end of an output cable via wires. The other end of the output cable is used for electrical connection to an external cable. This design protects the coil from mutual interference and damage to the mover core, and also provides electrical connection via wires. Direct wire connection replaces the PCB board to realize the electrical connection between coils and between coils and output cables. This simplifies the manufacturing process and saves the space required by the use of PCB boards, thereby reducing the size of the product. Furthermore, one of its flanges extends to the outside of the moving core and has two through holes for lead wires to pass through. On the surface of the flange with through holes opposite to the coil winding side, a winding support plate is formed on the side of the through holes near the moving core. The winding support plate has several winding slots, which can further improve the convenience, stability and safety of electrical connection between coils and between coils and output cables during use. Attached Figure Description

[0016] Appendix Figure 1 This is a schematic diagram of the overall structure of the moving part of the linear motor of this utility model;

[0017] Appendix Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Appendix Figure 3 This is a partial structural schematic diagram of the moving part unit of the linear motor of this utility model;

[0019] Appendix Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0020] Appendix Figure 5 This is a partial exploded view of the moving part of the linear motor of this utility model;

[0021] Appendix Figure 6 for Figure 5 Enlarged view of point C in the middle;

[0022] Appendix Figure 7 This is a schematic diagram of the silicon steel sheet structure in the moving part unit of the linear motor of this utility model;

[0023] Appendix Figure 8 This is a schematic diagram of the protective sleeve in the moving part unit of the linear motor of this utility model.

[0024] In the above attached figures: 1. Base plate; 2. Coil winding; 21. Lead wire; 3. Moving core; 31. Moving tooth; 32. Mounting hole; 33. Screw; 34. Nut; 4. Outgoing cable; 5. Conductor; 6. Silicon steel sheet; 61. Connecting part; 62. Through hole; 63. Extension part; 7. Sleeve; 8. Protective sleeve; 81. Flanged part; 82. Wire passage hole; 9. Winding support plate; 10. Winding groove. Detailed Implementation

[0025] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0026] Example 1: A mover unit of a linear motor includes: a base plate 1, a plurality of coil windings 2, and a mover core 3 mounted on the base plate 1. The mover core 3 has a plurality of mover teeth 31 corresponding to the coil windings 2 formed on the side opposite to the base plate 1. Each mover tooth 31, spaced apart from adjacent mover teeth 31, has a coil winding 2 correspondingly fitted on its outer side. A protective sleeve 8 is provided between each coil winding 2 and its corresponding mover tooth 31. A flange 81 perpendicular to and away from the sidewall of the protective sleeve 8 is formed on each of the four sidewalls of the protective sleeve 8, at the end closest to the base plate 1. The end face of the coil winding 2 near the base plate 1... The coil winding 2 is connected to the flange 81 of the corresponding protective sleeve 8. Each coil winding 2 has two outwardly extending lead wires 21 at one end. The lead wires 21 of several coil windings 2 are connected to each other and to one end of a cable 4 through wires 5. The other end of the cable 4 is used to connect to an external cable. By eliminating the PCB board wiring method and replacing it with direct connection with wires, the length and width of the internal structure of the linear motor mover are reduced, making the internal structure more compact. The specifications of the linear motor mover can be further reduced, so that it can be used in spaces with high requirements for the installation size of the linear motor module, making it occupy less space and more aesthetically pleasing.

[0027] One of the aforementioned flanged portions 81 extends to the outside of the moving core 3 and has two through holes 82 for the aforementioned lead wires 21 to pass through; the flanged portion 81 with the through holes 82 is on the surface opposite to the coil winding 2 and is located on the side of the through holes 82 near the moving core 3 to form a winding support plate 9, which has a plurality of winding slots 10.

[0028] The aforementioned moving core 3 is formed by stacking several silicon steel sheets 6; each of the aforementioned silicon steel sheets 6 has an outwardly extending connecting portion 61 at both ends, and a through hole 62 is provided on the connecting portion 61, thereby forming mounting holes 32 formed by the through holes 62 at both ends of the stacked moving core 3, and a screw 33 passes through the mounting holes 32 and is fixed by a nut 34.

[0029] Between the two connecting portions 61 of each silicon steel sheet 6, a plurality of extension portions 63 are provided at intervals along the length direction of the silicon steel sheet 6, thereby forming a moving tooth portion 31 connected by the extension portions 63 on the stacked moving core 3.

[0030] Example 2: A mover unit of a linear motor, comprising: a base plate 1, a plurality of coil windings 2, and a mover core 3 mounted on the base plate 1. The mover core 3 has a plurality of mover teeth 31 formed on the side opposite to the base plate 1, corresponding to the coil windings 2. Each mover tooth 31, spaced apart from adjacent mover teeth 31, has a coil winding 2 correspondingly fitted on its outer side. A protective sleeve 8 is provided between each coil winding 2 and its corresponding mover tooth 31. The protective sleeve 8 has four sidewalls... Each coil winding 2 has a flange 81 that is perpendicular to the side wall of the protective sleeve 8 at one end near the substrate 1. The end face of the coil winding 2 near the substrate 1 overlaps and contacts the flange 81 of the corresponding protective sleeve 8. Each coil winding 2 has two outwardly extending lead wires 21 at one end. The lead wires 21 of several coil windings 2 are connected to each other and to one end of a cable 4 through wires 5. The other end of the cable 4 is used to connect to an external cable.

[0031] A conduit 7 is fitted on the outer side of the connection between the lead wires 21 and the outer side of the connection between the lead wire 21 and the cable 4. By replacing the PCB board wiring with a conduit connection, the length and width of the internal structure of the linear motor mover are reduced, making the internal structure more compact. This allows for further reduction in the size of the linear motor mover, making it suitable for spaces with high requirements for the installation size of the linear motor module. This results in a smaller and more aesthetically pleasing space. The conduit also improves the convenience of wiring and the stability of the connection structure at the connection point. The coil winding 2 is made of copper wire, and the lead wire 21 is also made of copper wire.

[0032] The aforementioned moving core 3 is composed of several silicon steel sheets 6 stacked together; the aforementioned substrate 1 is an aluminum substrate.

[0033] The following is a further explanation of the above embodiments: The linear motor mover is made by laying the rotor of an ordinary motor flat, converting it into an open magnetic field environment, which can realize the direct conversion of electrical energy into mechanical energy for linear motion. Through the combination of the linear motor mover and stator, controllable linear motion can be directly realized without the need for an intermediate conversion mechanism.

[0034] The silicon steel sheets have holes at both ends. After a certain number of silicon steel sheets are stacked according to the corresponding specifications, copper studs are inserted into the holes formed by the pre-reserved slots on the stacked silicon steel sheets, and the two ends are fixed by flange nuts.

[0035] The coil is installed on a mounting position formed by stacking silicon steel sheets. One side of the silicon steel sheet is fixed by a protective sleeve and the coil, and the middle is tightly locked by a copper screw. The lower end is mounted on an aluminum substrate. The overall structure is compact and not easy to fall apart. Gaps are reserved between each coil to prevent the coils from conducting to each other and affecting performance. The size of the coil to be assembled is determined by the number of silicon steel sheets stacked, which makes it easy to replace coils of different specifications. The height of the silicon steel sheets is higher than the height of the coil after assembly, which can effectively prevent damage to the upper end of the coil.

[0036] After assembly, the silicon steel sheets are clipped onto the aluminum substrate, forming the linear motor actuator in the pre-wiring state;

[0037] Sufficient wiring length is reserved according to the matching position of the coil on the silicon steel sheet. Following the wiring circuit on the PCB board in the traditional process, the series and parallel connection between the coils is achieved by replacing the circuit soldering on the PCB board with wires and sleeves, eliminating the traditional soldering process. The copper wires of the corresponding coils are first connected in parallel with wires and sleeves, and then connected in series with the power cable through wires and sleeves. The sleeves are clamped at the connection points of the coil output wires and the connection points with the output cables, and the sleeves are pressed to complete the wiring.

[0038] The fixed-length PCB board circuits are replaced by conduit wiring, thus eliminating the area reserved for the PCB board inside the linear motor mover to ensure a smaller overall structure size. This allows for optimization of the internal structure of the linear motor mover, making it more compact.

[0039] By subtracting the gap between the PCB board and the coil from the original length, the overall width of the linear motor mover is reduced. Since the PCB board is removed, the copper studs used to fix the PCB board are also removed, further shortening the width of the linear motor mover. This reduces the installation width of the linear module, which can cope with more complex installation environments and avoids interference between structures.

[0040] Compared to traditional coil specifications, the length of the reserved copper wire is increased depending on the assembly position, which facilitates the use of wires and conduits for circuit connection; the conduit replaces soldering connections, making the wiring methods more diverse.

[0041] When using the aforementioned linear motor mover unit, it can protect the coil and prevent mutual interference and damage between it and the mover core. It can also replace the PCB board with direct wire connection to realize the electrical connection between coils and between coils and the cable, which simplifies the processing technology and saves the space required by the use of PCB board, thereby reducing the appearance size of the product.

[0042] Furthermore, one of its flanges extends to the outside of the moving core and has two through holes for lead wires to pass through. The flange with the through holes is opposite to the surface of the coil winding and forms a winding support plate on the side of the through holes near the moving core. The winding support plate has several winding slots, which can further improve the convenience, stability and safety of electrical connection between coils and between coils and lead wires.

[0043] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A moving part unit of a linear motor, comprising: The system comprises a substrate (1), several coil windings (2), and a moving core (3) mounted on the substrate (1). The moving core (3) has several moving teeth (31) on the side opposite to the substrate (1), corresponding to the coil windings (2). Each moving tooth (31) spaced apart from adjacent moving teeth (31) has a coil winding (2) correspondingly fitted onto its outer side. The system is characterized by a protective sleeve (8) between each coil winding (2) and its corresponding moving tooth (31). The protective sleeve (8) has four side walls located near its... One end of the substrate (1) is formed with a flange (81) that is perpendicular to the side wall of the protective sleeve (8). The end face of the coil winding (2) near the end of the substrate (1) is in contact with the flange (81) of the corresponding protective sleeve (8). One end of each coil winding (2) is provided with two outwardly extending lead wires (21). The lead wires (21) of several coil windings (2) are connected to each other and the lead wires (21) of the coil windings (2) are connected to one end of an outgoing cable (4) by wires (5). The other end of the outgoing cable (4) is used to connect to an external cable.

2. The moving part of the linear motor according to claim 1, characterized in that: One of the flanges (81) extends to the outside of the moving core (3) and has two through holes (82) through which the lead wire (21) can pass.

3. The moving part of the linear motor according to claim 2, characterized in that: The flange (81) with the wire hole (82) is on the surface opposite to the coil winding (2) and located on the side of the wire hole (82) near the moving core (3) to form a winding support plate (9), which has a plurality of winding slots (10) on it.

4. The moving part of the linear motor according to claim 1, characterized in that: A conduit (7) is provided on the outer side of the connection between the lead-out line (21) and the outer side of the connection between the lead-out line (21) and the outgoing cable (4).

5. The moving part of the linear motor according to claim 1, characterized in that: The coil winding (2) is made of copper wire, and the lead wire (21) is made of copper wire.

6. The moving part of the linear motor according to claim 1, characterized in that: The moving core (3) is made up of several silicon steel sheets (6) stacked together.

7. The moving part of the linear motor according to claim 6, characterized in that: Each of the silicon steel sheets (6) has an outwardly extending connecting portion (61) at both ends, and a through hole (62) is provided on the connecting portion (61), so that mounting holes (32) formed by the through holes (62) are formed at both ends of the stacked moving core (3), and a screw (33) passes through the mounting hole (32) and is fixed by a nut (34).

8. The moving part of the linear motor according to claim 7, characterized in that: Between the two connecting portions (61) of each silicon steel sheet (6), there are a plurality of extension portions (63) arranged at intervals along the length direction of the silicon steel sheet (6), thereby forming a moving tooth portion (31) formed by the extension portions (63) on the stacked moving core (3).

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